gtk:grid-baseline-row (object)

object -- a gtk:grid widget
row -- an integer for the row index

The accessor for the baseline-row slot of the gtk:grid class gets or sets the row to align to the baseline when valign has the :center value of the gtk:align enumeration.

Each row in the grid can have its own local baseline, but only one of those is global, meaning it will be the baseline in the parent of the grid.